US4734503A
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Catalytic transhalogenation of haloaromatics
Assignee: EIDP Inc
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Filing: 1986-02-07
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Granted: 1988-03-29
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Expires: 2006-02-07
Abstract
Abstract Catalytic transhalogenation of haloaromatics according to the equation: C.sub.z F.sub.a X.sub.b N.sub.e L.sub.1 +C.sub.z F.sub.c X.sub.d N.sub.e L 2 →C z F a+1 X b-1 N e L 1 +C z F c-1 X d+1 N e L 2 wherein: when C z is a benzene derivative, a+b=5; e=0; c+d=5; z=6; when C z is a pyridine derivative, a+b=4; e=1; c+d=4; z=5; when C z is a naphthalene derivative, a+b=7; e=0; c+d=7; z=10; and when C z is a biphenyl derivative, a+b=9; e=0; c+d=9; z=12; L 1 and L 2 , alike or different, are selected from F, Cl, Br, H, CN, C n F 2n+1 , and C 6 F 5 ; X is Cl, Br, or I when C z is a benzene derivative; and n is 1 to 12. This method is a novel route to known haloaromatic compounds.
Inventors
- 👤 Frank J. Weigert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 11:11
CPC Classifications
C; C07; C07C; C07C17/00; C07C17/093; C07C17/20; C07C17/202; C07C17/37; C07D; C07D213/00; C07D213/02; C07D213/04; C07D213/60; C07D213/61
Claims Analysis
Total Claims: 36
Claim 1
Independent Claim
41 words
A catalyst method for rearranging haloaromatic compounds according to the equation C.sub.z F.sub.a X.sub.b N.sub.e L.sub.1 +C.sub.z F.sub.c X.sub.d N.sub.e L.sub.2 →C.sub.z F.sub.a+1 X.sub.b-1 N.sub.e L.sub.1 +C.sub.z F.sub.c-1 X.sub.d+1 N.sub.e L.sub.2 wherein: when C z is benzene, a+b=5; e-0; c+d=5; z=6;
Claim 2
Dependent Claim
41 words
A catalyst method for rearranging haloaromatic compounds according to the equation C.sub.z F.sub.a X.sub.b N.sub.e L.sub.1 +C.sub.z F.sub.c X.sub.d N.sub.e L.sub.2 →C.sub.z F.sub.a+1 X.sub.b-1 N.sub.e L.sub.1 +C.sub.z F.sub.c-1 X.sub.d+1 N.sub.e L.sub.2 wherein: when C z is benzene, a+b=5; e-0; c+d=5; z=6;
Claim 3
Dependent Claim
258 words
when C z is a pyridine, a+b=4; e=1; c+d=4; z=5; when C z is a naphthalene, a+b=7; e=0; c+d=7; z=10; and when C z is a biphenyl, a+b=9; e=0; c+d=9; z=12; L 1 and L 2 , alike or different, are selected from F, Cl, Br, H, CN, C n F 2n+1 , and C 6 F 5 ; X is Cl, Br, or I when C z is a benzene; and n is 1 to 12; at a temperature of about 300° to 600° C., in the presence of a catalyst selected from the group consisting of: (i) Cr 2 O 3 and Al 2 O 3 alone or together; (ii) Cr 2 O 3 and one or more members from the group MnO, MnO 2 , P 2 O 5 , B 2 O 3 , La 2 O 3 , ZnO, Fe 2 O 3 , NiO, Pd, WO 3 , CoO, V 2 O 5 , CuCl 2 , CuO, PbO, Bi 2 O 3 , FeO, NiO, CoO, ZrO 2 , TiO 2 , MgO and CrCl 3 ; and (iii) Al 2 O 3 and one or more members from the group MnO, MnO 2 , P 2 O 5 , B 2 O 3 , La 2 O 3 , ZnO, Fe 2 O 3 , NiO, Pd, WO 3 , CoO, V 2 O 5 , CuCl 2 , CuO, PbO, Bi 2 O 3 , FeO, NiO, CoO, ZrO 2 , TiO 2 , MgO and CrCl 3 .
Claim 4
Dependent Claim
258 words
when C z is a pyridine, a+b=4; e=1; c+d=4; z=5; when C z is a naphthalene, a+b=7; e=0; c+d=7; z=10; and when C z is a biphenyl, a+b=9; e=0; c+d=9; z=12; L 1 and L 2 , alike or different, are selected from F, Cl, Br, H, CN, C n F 2n+1 , and C 6 F 5 ; X is Cl, Br, or I when C z is a benzene; and n is 1 to 12; at a temperature of about 300° to 600° C., in the presence of a catalyst selected from the group consisting of: (i) Cr 2 O 3 and Al 2 O 3 alone or together; (ii) Cr 2 O 3 and one or more members from the group MnO, MnO 2 , P 2 O 5 , B 2 O 3 , La 2 O 3 , ZnO, Fe 2 O 3 , NiO, Pd, WO 3 , CoO, V 2 O 5 , CuCl 2 , CuO, PbO, Bi 2 O 3 , FeO, NiO, CoO, ZrO 2 , TiO 2 , MgO and CrCl 3 ; and (iii) Al 2 O 3 and one or more members from the group MnO, MnO 2 , P 2 O 5 , B 2 O 3 , La 2 O 3 , ZnO, Fe 2 O 3 , NiO, Pd, WO 3 , CoO, V 2 O 5 , CuCl 2 , CuO, PbO, Bi 2 O 3 , FeO, NiO, CoO, ZrO 2 , TiO 2 , MgO and CrCl 3 .
Claim 5
Dependent Claim
11 words
A method according to claim 1 wherein a+b=5, e=0, c+d=5, z=6.
Claim 6
Dependent Claim
11 words
A method according to claim 1 wherein a+b=4, e=1, c+d=4, z=5.
Claim 7
Dependent Claim
11 words
A method according to claim 1 wherein a+b=7, e=0, c+d=7, z=10.
Claim 8
Dependent Claim
11 words
A method according to claim 1 wherein a+b=9, e=0, c+d=9, z=12.
Claim 9
Dependent Claim
10 words
A method according to claim 2 wherein X is Cl.
Claim 10
Dependent Claim
8 words
A method according to claim 6 wherein b=3.
Claim 11
Dependent Claim
8 words
A method according to claim 7 wherein d=4.
Claim 12
Dependent Claim
8 words
A method according to claim 6 wherein b=5.
Claim 13
Dependent Claim
10 words
A method according to claim 2 wherein X is Br.
Claim 14
Dependent Claim
10 words
A method according to claim 2 wherein X is I.
Claim 15
Dependent Claim
11 words
A method according to claim 3 wherein X is Cl, Br.
Claim 16
Dependent Claim
15 words
A method according to claim 1 wherein the catalyst comprises Cr 2 O 3 .
Claim 17
Dependent Claim
15 words
A method according to claim 1 wherein the catalyst comprises Al 2 O 3 .
Claim 18
Dependent Claim
20 words
A method according to claim 1 wherein the catalyst comprises Cr 2 O 3 and Al 2 O 3 .
Claim 19
Dependent Claim
13 words
A method according to claim 1 wherein the catalyst comprises catalyst group (ii).
Claim 20
Dependent Claim
13 words
A method according to claim 1 wherein the catalyst comprises catalyst group (iii).
Claim 21
Dependent Claim
15 words
A method according to claim 2 wherein the catalyst comprises Cr 2 O 3 .
Claim 22
Dependent Claim
15 words
A method according to claim 2 wherein the catalyst comprises Al 2 O 3 .
Claim 23
Dependent Claim
20 words
A method according to claim 2 wherein the catalyst comprises Cr 2 O 3 and Al 2 O 3 .
Claim 24
Dependent Claim
13 words
A method according to claim 2 wherein the catalyst comprises catalyst group (ii).
Claim 25
Dependent Claim
13 words
A method according to claim 2 wherein the catalyst comprises catalyst group (iii).
Claim 26
Dependent Claim
15 words
A method according to claim 3 wherein the catalyst comprises Cr 2 O 3 .
Claim 27
Dependent Claim
15 words
A method according to claim 3 wherein the catalyst comprises Al 2 O 3 .
Claim 28
Dependent Claim
20 words
A method according to claim 3 wherein the catalyst comprises Cr 2 O 3 and Al 2 O 3 .
Claim 29
Dependent Claim
13 words
A method according to claim 3 wherein the catalyst comprises catalyst group (ii).
Claim 30
Dependent Claim
13 words
A method according to claim 3 wherein the catalyst comprises catalyst group (iii).
Claim 31
Dependent Claim
29 words
A method according to claim 16 wherein the catalyst comprises Cr 2 O 3 and up to 50% of one or more of the remaining members of group (ii).
Claim 32
Dependent Claim
29 words
A method according to claim 21 wherein the catalyst comprises Cr 2 O 3 and up to 50% of one or more of the remaining members of group (ii).
Claim 33
Dependent Claim
29 words
A method according to claim 26 wherein the catalyst comprises Cr 2 O 3 and up to 50% of one or more of the remaining members of group (ii).
Claim 34
Dependent Claim
27 words
A method according to claim 17 wherein the catalyst comprises Al 2 O 3 and up to 20% of one or more of FeO, NiO and CoO.
Claim 35
Dependent Claim
27 words
A method according to claim 22 wherein the catalyst comprises Al 2 O 3 and up to 20% of one or more of FeO, NiO and CoO.
Claim 36
Dependent Claim
27 words
A method according to claim 27 wherein the catalyst comprises Al 2 O 3 and up to 20% of one or more of FeO, NiO and CoO.
References Cited (Backward Citations)
US3231625A
Cited
US3852365A
Cited
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1991-03-29 | 1991-09-28 | 1992-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-03-29 | 1995-09-28 | 1996-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-03-29 | 1999-09-28 | 2000-03-29 | $7700.00 | Window Closed / Lapsed |